Allow hydrate/dehydrate in orpc middleware

[Fabian9799]

Right now setup only exposes .check to be used making it not possible to use the hydrate/dehydrate functions without creating a custom middleware.
.dehydrate would probably make sense but not sure about the hydrate() part

[letstri]

Hello, thanks for the issue!

I released a new version 3.5.0 so check a new methods in Permix instance: https://permix.letstri.dev/docs/guide/hydration